Switch libraries to using new tags.

sdk/lib/core/core.dart

Index: sdk/lib/core/core.dart
diff --git a/sdk/lib/core/core.dart b/sdk/lib/core/core.dart
index fb17dc3c5cd5151bd66fcc67dd6dff4a78c682dd..d178451e88f6f0fc8a1d99d4a70feee24e8d23ff 100644
--- a/sdk/lib/core/core.dart
+++ b/sdk/lib/core/core.dart
@@ -2,43 +2,43 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-#library("dart:core");
+library dart.core;
 
-#import("dart:collection");
+import "dart:collection";
 
-#source("bool.dart");
-#source("collection.dart");
-#source("comparable.dart");
-#source("date.dart");
-#source("double.dart");
-#source("duration.dart");
-#source("errors.dart");
-#source("exceptions.dart");
-#source("expando.dart");
-#source("expect.dart");
-#source("function.dart");
-#source("future.dart");
-#source("future_impl.dart");
-#source("hashable.dart");
-#source("identical.dart");
-#source("int.dart");
-#source("invocation_mirror.dart");
-#source("iterable.dart");
-#source("iterator.dart");
-#source("list.dart");
-#source("map.dart");
-#source("num.dart");
-#source("object.dart");
-#source("options.dart");
-#source("pattern.dart");
-#source("print.dart");
-#source("queue.dart");
-#source("regexp.dart");
-#source("sequences.dart");
-#source("set.dart");
-#source("sort.dart");
-#source("stopwatch.dart");
-#source("string.dart");
-#source("string_buffer.dart");
-#source("strings.dart");
-#source("type.dart");
+part "bool.dart";
+part "collection.dart";
+part "comparable.dart";
+part "date.dart";
+part "double.dart";
+part "duration.dart";
+part "errors.dart";
+part "exceptions.dart";
+part "expando.dart";
+part "expect.dart";
+part "function.dart";
+part "future.dart";
+part "future_impl.dart";
+part "hashable.dart";
+part "identical.dart";
+part "int.dart";
+part "invocation_mirror.dart";
+part "iterable.dart";
+part "iterator.dart";
+part "list.dart";
+part "map.dart";
+part "num.dart";
+part "object.dart";
+part "options.dart";
+part "pattern.dart";
+part "print.dart";
+part "queue.dart";
+part "regexp.dart";
+part "sequences.dart";
+part "set.dart";
+part "sort.dart";
+part "stopwatch.dart";
+part "string.dart";
+part "string_buffer.dart";
+part "strings.dart";
+part "type.dart";